Triple

T16485788
Position Surface form Disambiguated ID Type / Status
Subject Gare Centrale E400434 entity
Predicate hasAmtrakCode P18202 FINISHED
Object MTR
MTR is the Amtrak station code for Montreal Central Station, a major intercity rail hub in Montreal, Canada.
E1015555 NE FINISHED

How this triple was built (5 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: MTR | Statement: [Gare Centrale, hasAmtrakCode, MTR]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: MTR
Context triple: [Gare Centrale, hasAmtrakCode, MTR]
  • A. MTR
    MTR is the station code for Matara railway station, a key terminus on Sri Lanka’s coastal railway line.
  • B. MTR urban lines
    MTR urban lines are a network of rapid transit railway services forming the core of Hong Kong’s mass transit system, particularly serving dense urban areas such as Kowloon.
  • C. MTR Nordic
    MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
  • D. MTR Tuen Ma line
    The MTR Tuen Ma line is a major heavy-rail metro line in Hong Kong that runs across the New Territories and Kowloon, connecting eastern and western districts through key residential and commercial areas.
  • E. MTR Light Rail
    MTR Light Rail is a local light rail transit system in Hong Kong’s northwestern New Territories, providing frequent, short-distance services that connect residential areas with major MTR heavy rail lines.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: MTR
Triple: [Gare Centrale, hasAmtrakCode, MTR]
Generated description
MTR is the Amtrak station code for Montreal Central Station, a major intercity rail hub in Montreal, Canada.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: MTR
Target entity description: MTR is the Amtrak station code for Montreal Central Station, a major intercity rail hub in Montreal, Canada.
  • A. MTR chosen
    MTR is the station code for Matara railway station, a key terminus on Sri Lanka’s coastal railway line.
  • B. MTR urban lines
    MTR urban lines are a network of rapid transit railway services forming the core of Hong Kong’s mass transit system, particularly serving dense urban areas such as Kowloon.
  • C. MTR Nordic
    MTR Nordic is a Swedish public transport company that operates and manages rail and metro services, including the Stockholm metro, as part of the global MTR Corporation group.
  • D. MTR Tuen Ma line
    The MTR Tuen Ma line is a major heavy-rail metro line in Hong Kong that runs across the New Territories and Kowloon, connecting eastern and western districts through key residential and commercial areas.
  • E. MTR Light Rail
    MTR Light Rail is a local light rail transit system in Hong Kong’s northwestern New Territories, providing frequent, short-distance services that connect residential areas with major MTR heavy rail lines.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasAmtrakCode
Context triple: [Gare Centrale, hasAmtrakCode, MTR]
  • A. railroadCodeFor chosen
    Indicates that a specific railroad code is assigned to or used to identify a particular railroad entity.
  • B. isRailServiceOf
    Indicates that a particular rail service operates for, belongs to, or is provided by a specified entity (such as a route, operator, or network).
  • C. operatorFleetNumberRangeAmtrak
    Indicates that the operator’s fleet numbers for the referenced Amtrak vehicles fall within a specified numeric range.
  • D. hasRail
    Indicates that something is equipped with, includes, or is connected to a rail or rail system.
  • E. hasRailRoute
    Indicates that there exists a rail-based transportation route or connection between the related entities.
  • F. None of above.

Provenance (6 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69d883813098819084f5409539723b59 completed April 10, 2026, 4:58 a.m.
NER Named-entity recognition batch_69e32e068fac8190a0971f548848fcfe completed April 18, 2026, 7:08 a.m.
NED1 Entity disambiguation (via context triple) batch_6a00582275308190a0fb3944d74916cf completed May 10, 2026, 10:04 a.m.
NEDg Description generation batch_6a0058a1c51c81908f49db448a4d0365 completed May 10, 2026, 10:06 a.m.
NED2 Entity disambiguation (via description) batch_6a00595837c4819093f1a1a35185bc4b completed May 10, 2026, 10:09 a.m.
PD Predicate disambiguation batch_69e22706b0588190a48a951c5211a617 completed April 17, 2026, 12:26 p.m.
Created at: April 10, 2026, 5:13 a.m.